Soapberry is a type of fruit that comes from trees in the family Sapindaceae. These trees are found in various regions around the world, including North America, Asia, and Australia. The fruit is often small and round, with a translucent outer shell that can be yellow or red. Soapberries are known for their natural soap-like properties due to the presence of saponins, which can create a lather when mixed with water. The most well-known species is Sapindus saponaria, commonly referred to as the soapberry tree. People have used soapberries for centuries as a natural cleaning agent for laundry and personal care. Additionally, the fruit is sometimes used in traditional medicine and as a natural insect repellent.